磁共振与乳腺钼靶检查对乳腺癌的影像学诊断价值比较研究

Comparative Study of Imaging Diagnostic Value of Magnetic Resonance Imaging and Mammography on Breast Cancer

目的探讨磁共振(MRI)与乳腺钼靶检查(MG)对乳腺癌的影像学诊断价值。方法回顾性分析我院2015年7月至2018年9月收治的90例乳腺肿块患者磁共振与乳腺钼靶影像学资料,并与术后病理结果进行对比,比较磁共振与乳腺钼靶检查对乳腺癌的诊断效能。结果 MRI与MG恶性肿块检出情况比较差异无统计学意义(P>0.05);MRI乳腺肿块良恶性诊断敏感度80.77%,特异度81.58%,准确度81.11%,阳性预测值85.71%,阴性预测值75.61%高于MG乳腺肿块良恶性诊断敏感度59.62%,特异度63.16%,准确度61.11%,阳性预测值68.89%,阴性预测值53.53%,差异有统计学意义(P<0.05);MG术前诊断29个乳腺癌病灶大小(1.73±0.79)cm小于术后病理诊断(2.49±0.66)cm,差异有统计学意义(P<0.05);MRI术前诊断MRI诊断42个乳腺癌病灶大小(2.40±0.75)cm与术后病理结果(2.45±0.81)cm比较差异无统计学意义(P>0.05);MRI诊断淋巴结准确性为95.00%高于MG诊断淋巴结转移准确性为50.00%,差异有统计学意义(P<0.05)。结论 MRI诊断乳腺癌效能高于MG,对乳腺癌病灶大小的判断更接近于术后病理诊断,判断淋巴结转移准确率高。

Objective To explore the imagingdiagnostic value of magnetic resonance imaging(MRI) and mammography(MG) on breast cancer. Methods The imaging data of magnetic resonance imaging and mammography of 90 patients with breast masses admitted to our hospital from July 2015 to September 2018 were retrospectively analyzed, and they were compared with postoperative pathological results. Diagnostic efficacy ofmagnetic resonance imaging and mammography on breast cancer was compared. Results There was no significant difference in the detection of malignant massesbetween MRI and MG(P>0.05). The sensitivity, specificity, accuracy, positive predictive value and negative predictive value inthe diagnosis of benign and malignantbreast masses by MRI were 80.77%, 81.58%, 81.11%, 85.71% and 75.61%, which were higher than those by MG with 59.62%, 63.16%, 61.11%, 68.89% and 53.53%(P<0.05). The size of 29 breast cancer lesions by MG preoperative diagnosis was less than that by postoperative pathological diagnosis [(1.73±0.79) cm vs(2.49±0.66) cm](P<0.05). There was no significant difference in the sizeof 42 breast cancer lesions by MRI preoperative diagnosis and postoperative pathologicaldiagnosis [(2.40±0.75) cm vs(2.45±0.81) cm](P>0.05). The accuracy of MRI in diagnosis of lymph node metastasis was higher than that of MG(95.00% vs 50.00%)(P<0.05). Conclusion MRI has higher efficacythan MG in the diagnosis of breast cancer, and its judgment on size of breast cancer lesions is closer to the postoperative pathological diagnosis, and it has higher accuracy ratein the judgment of lymph node metastasis.